I _____ in the sky now. A. is flying B. am flying C. flew
It is very kind _____ you to help me with my lessons. It is difficult _____me to learn them well.
-What would you like to drink ? -It doesn’t matter. ________will do .
_______your history teacher_______ you ?
-How many students watched the teacher carefully enough ? -_________. Nobody B. None C. Someone D. Some one
Some of my friends are interested in science,but none of them can tell A when UFOs will appear next time B why do horses know the way C where was this kind of plant found D how do elephants communicate